Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6905580 | Water treating apparatus | Keiko Kurokawa, Masayuki Motegi, Tatsuya Hirota | 2005-06-14 |
| 6827849 | Foot warm bath equipment | Keiko Kurokawa, Masayuki Motegi, Daisuke Suzuki | 2004-12-07 |
| 4876070 | Air blower apparatus | Hitoshi Tsukahara, Keiko Kurokawa, Toshitake Nagai | 1989-10-24 |